Function proto_request_raw 

pub async fn proto_request_raw<Req, Rsp>(
    state: &RestState,
    proto_id: u32,
    json_body: Option<Value>,
) -> Result<RawJson, (StatusCode, Json<Value>)>
where
    Req: Message + Default + DeserializeOwned,
    Rsp: Message + Default + Serialize,